diff options
Diffstat (limited to 'util/nvmutil/nvmutil.c')
| -rw-r--r-- | util/nvmutil/nvmutil.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c index 419a51bb..9580b1fa 100644 --- a/util/nvmutil/nvmutil.c +++ b/util/nvmutil/nvmutil.c @@ -1344,8 +1344,7 @@ gbe_mem_offset(size_t p, const char *f_op) } /* - * Reads to GbE from write_gbe_file_part and read_gbe_file_part - * are filtered through here. These operations must + * I/O operations filtered here. These operations must * only write from the 0th position or the half position * within the GbE file, and write 4KB of data. * @@ -1579,6 +1578,15 @@ getnvmprogname(void) return argv0; } +/* + * Set errno only if it hasn't already been set. + * This prevents overriding real libc errors. + * + * We use errno for regular program state, while + * being careful not to clobber what was set by + * real libc function, or a minority of our stub + * functions such as prw() + */ static void set_err_if_unset(int x) { |